CN215096658U

CN215096658U - Multifunctional teaching aid

Info

Publication number: CN215096658U
Application number: CN202121321244.1U
Authority: CN
Inventors: 刘慧宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-10
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a multifunctional teaching aid; the protractor comprises a protractor body, a measuring tape, a rotating part and a pointer; the bottom surface of the protractor body is provided with a groove for containing a pointer, the groove is internally fixedly connected with a plurality of buckles matched with the pointer, the rotating part is hinged to the upper side of the protractor body, the side wall of the rotating part is provided with an assembling groove, the top surface of the rotating part is provided with a positioning groove matched with the bottom of the pointer, and the flexible rule and the assembling groove of the rotating part are detachably matched. When the multifunctional teaching aid is used for measuring an angle, the included angle of the graph is directly measured by using the protractor main body, and the protractor main body can be adsorbed on a blackboard through the first magnet; when the multifunctional teaching aid is used as a compass, the tape measure is adsorbed on a blackboard by using the second magnet, the chalk is clamped by the fixing clamp, the tape measure is pulled out by a preset length, and the chalk is driven to draw a circular pattern on the blackboard; when this multi-functional teaching aid test was surveyed the day shadow, the tape is pulled out as the guay, inserts the teacher's pointer and works as the table in the constant head tank of rotating part top surface again.

Description

Multifunctional teaching aid

Technical Field

The utility model relates to a multifunctional teaching aid.

Background

The teaching aid is a material object for propagating science and technology and educating people, and is an indispensable device in teenager science and technology activities. But present teaching aid function is all more single, needs multiple teaching aid cooperation to use usually in the teaching experiment, not only inconvenient carrying, influences the demonstration effect moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a multi-functional teaching aid that rational in infrastructure, convenient to use is provided.

In order to solve the technical problem, the utility model provides a multifunctional teaching aid;

the protractor comprises a protractor body, a measuring tape, a rotating part and a pointer;

the bottom surface of the protractor body is provided with a groove for containing a pointer, the groove is internally fixedly connected with a plurality of buckles matched with the pointer, the rotating part is hinged to the upper side of the protractor body, the side wall of the rotating part is provided with an assembling groove, the top surface of the rotating part is provided with a positioning groove matched with the bottom of the pointer, and the flexible rule and the assembling groove of the rotating part are detachably matched.

As the optimization of this multi-functional teaching aid, be equipped with a plurality of first magnet in the recess of protractor main part.

As the optimization of this multi-functional teaching aid, the tape measure lateral wall is equipped with the second magnet.

Preferably, a third magnet matched with the second magnet of the tape measure is embedded in the groove wall of the rotating part assembling groove.

As the optimization of the multifunctional teaching aid, the end part of the tape measure is provided with a fixing clamp.

As the optimization of this multi-functional teaching aid, protractor main part up end is opened has the through-hole that communicates with each other with the recess, and the rotating part bottom runs through the through-hole of protractor main part and stretches into the recess of protractor main part, and the rotating part bottom outside cover that is in the recess is equipped with the fender ring, and the external diameter of fender ring is greater than the diameter of through-hole.

As the optimization of this multi-functional teaching aid, the outside parcel of second magnet has the magnet casing, articulates between magnet casing and the tape measure lateral wall.

After the structure is adopted, when the multifunctional teaching aid is used for measuring angles, the included angle of the graph is directly measured by using the protractor main body, and the protractor main body can be adsorbed on a blackboard through the first magnet; when the multifunctional teaching aid is used as a compass, a tape can be taken out for use independently, the tape is adsorbed on a blackboard by using a second magnet, a chalk is clamped by a fixing clamp, the tape is pulled out by a preset length, and the fixing clamp is rotated by taking the second magnet as a circle center to drive the chalk to draw a circular pattern on the blackboard; when this multi-functional teaching aid test was surveyed the day shadow, during the tape measure was used as the guy of surveying the day shadow, on the assembly groove of rotating part the tape measure card, then pull out the tape measure and work as the guy, insert the teacher's pointer in the constant head tank of rotating part top surface again and work as the table.

The multifunctional teaching aid has the beneficial effects that: simple structure, strong practicability, low price and convenient popularization.

Drawings

Fig. 1 is a top view of the multifunctional teaching aid in use as a protractor.

Fig. 2 is a bottom view of the multifunctional teaching aid in use as a protractor.

Figure 3 is a cross-sectional view of a front view of the multifunctional teaching aid embodiment as used as an guy watch.

Fig. 4 is an enlarged view of a portion a of fig. 3.

Figure 5 is a schematic view of the structure of a tape measure in the embodiment of the multifunctional teaching aid.

Detailed Description

As shown in fig. 1 to 5

This multi-functional teaching aid includes protractor main part 1, tape measure 3, rotating part 2 and teacher's pointer 4.

The protractor main body 1 is roughly in a semicircular shape, a groove 11 for accommodating the pointer 4 is formed in the bottom surface of the protractor main body 1, two buckles 12 matched with the pointer 4 are fixedly bonded in the groove 11, four first magnets 13 are fixedly bonded in the groove 11 of the protractor main body 1, and a through hole communicated with the groove 11 is formed in the center of the upper end surface of the protractor main body 1.

The rotating part 2 articulates in the 1 upside of protractor main part, and the rotating part 2 bottom runs through the through-hole of protractor main part 1 and stretches into in the recess 11 of protractor main part 1, and the rotating part 2 bottom outside cover that is in recess 11 is equipped with and keeps off ring 21, and the external diameter that keeps off ring 21 is greater than the diameter of through-hole.

The rotating part 2 lateral wall is equipped with assembly groove 22, and open on the rotating part 2 top surface have with 4 bottom cooperation constant head tanks 24 of teacher's pointer, and constant head tank 24's axial direction is unanimous with vertical direction, realizes dismantling the cooperation between tape measure 3 and rotating part 2's assembly groove 22, and the embedding has third magnet 23 in the cell wall of rotating part 2 assembly groove 22.

The side wall of the measuring tape 3 is provided with a second magnet 31 matched with the third magnet 23 of the assembling groove 22, the second magnet 31 is externally wrapped with a magnet shell 32, the magnet shell 32 is embedded in the side wall of the measuring tape 3 and is hinged with the side wall of the measuring tape 3, the structure of the magnet shell 32 enables the second magnet 31 to freely rotate relative to the measuring tape 3 in a plane, and the end part of a tape 33 of the measuring tape 3 is provided with a fixing clip 34.

The pointer 4 is a telescopic pointer 4, the contracted pointer 4 can be matched with the buckle 12 of the protractor body 1, and the contracted pointer 4 is completely positioned in the groove 11.

This multi-functional teaching aid can have following function:

this multi-functional teaching aid is when using as the protractor, directly uses protractor main part 1 to measure the contained angle of figure to protractor main part 1 can adsorb on the blackboard through first magnet 13, and at this moment, tape measure 3 cooperates with the assembly groove 22 of rotating part 2, and teacher's pointer 4 is in protractor main part 1's recess 11.

When the multifunctional teaching aid is used as a compass, the tape 3 can be taken out and used independently, the tape 3 is adsorbed on a blackboard through the second magnet 31, the fixing clamp 34 clamps chalk, the tape 33 is pulled out by a preset length, the second magnet 31 is used as the center of a circle, the fixing clamp 34 is rotated, and the chalk is driven to draw a circular pattern on the blackboard.

This multi-functional teaching aid is when using as the guy square, and during tape measure 3 was used as the guy square of surveying the day shadow, 3 blocks tape measure 3 on the assembly groove 22 of rotating part 2, then pull out tape 33 as the guy square, inserts the teacher's pointer 4 again and regards as the table in the constant head tank 24 of rotating part 2 top surface, just can realize surveying the function of day shadow this moment.

The tape 3 is also a ruler for measuring the length of an object in the usual case, and the length of the object is measured with the scale being directed under the tape 33 of the tape 3.

The above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.

Claims

1. A multifunctional teaching aid is characterized in that:

2. A multi-functional teaching aid according to claim 1, characterized in that:

a plurality of first magnets are arranged in the groove of the protractor main body.

3. A multi-functional teaching aid according to claim 1, characterized in that:

and a second magnet is arranged on the side wall of the measuring tape.

4. A multi-functional teaching aid according to claim 3, characterized in that:

and a third magnet matched with the second magnet of the tape measure is embedded in the wall of the rotating part assembling groove.

5. A multi-functional teaching aid according to claim 1, characterized in that:

the end part of the tape measure is provided with a fixing clamp.

6. A multi-functional teaching aid according to claim 1, characterized in that:

the upper end face of the protractor body is provided with a through hole communicated with the groove, the bottom of the rotating part penetrates through the through hole of the protractor body and extends into the groove of the protractor body, a blocking ring is sleeved on the outer side of the bottom of the rotating part in the groove, and the outer diameter of the blocking ring is larger than the diameter of the through hole.

7. A multi-functional teaching aid according to claim 3, characterized in that:

the outside parcel of second magnet has the magnet casing, and articulated between magnet casing and the tape measure lateral wall.